Improved windlass



A'ATENT OFFICE.

MARCUS BOCKMAN, OF BROOKLYN, NEW YORK.

IMPROVED WINDLASS.

Specification forming part of Letters Patent No. 44,276, dated September 20, 1864.

To all whom it may concern.:

Be it known that I, MARCUS BooKMAN, of the city of Brooklyn, in the county of Kings and State ofNew York, have invented a new and improved machine for heaving anchors, and which is useful for other lifting purposes; and I declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification Figure 1 is a front view, and Fig. 2 a transverse section.

The nature of my invention consists in the construction of a compound windlass, suitable for heaving anchors, which will accomplish the end for which it is designed with less labor and in less time than the ordinary machines now in use for that purpose.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

I construct my anchorheaver of any suitable size, out of any suitable materials used for similar purposes by ship-builders, and in form as follows, special reference being had to the drawings On the platform or deck A, I erect the angular bench B, so that the front angle of said bench will face the large windlass spool or drum X, which carries the anchor chains or ropes, and which is placed a little forward of the front legs of the bench B and under the deck or platform A. On the front angle of the bench B, I place three shafts, C, D, and E, all parallel with each other and with ihe large spool or drum X. Each shaf't has a pair of cog-wheels, F, G, and lAI, which are placed one on each end of their respective shafts, and which pairs of cog-wheels vary in size in the ratio of 1, 2, and 3, andwhich cogwheels, when placed in proper position on the front angle of the bench B, their cogs interlocking, regulate the distances between the shafts C, D, and E. The cog-wheels of the least diameter, F, are placed upon the shaft C, which rests on the apex of the bench B, and are so arranged they can be unlocked from the cog-wheels G on the shaft D, which is immediately under the shaft C, by being moved toward the center of the shaft C by means of the forked levers K, which are fastened by the bolts L on the bar M, which is fastened to the back face or angle of the bench B, working in grooves or shoulders N of the cog-wheels F. The distance right and left that the 4forked levers K are to move the cogwheels F will be regulated by shoulders of proper angles, cut in the bar M, to which they are fastened. The pins -lon the shaft C are. to prevent the cogs F from slipping toward the center of the shaft when the machine is put in motion by power applied to the cranks of said shaft. The ends O of the shafts O and D are arranged for the application of the cranks P, through which the power is applied to the windlass. The shaft E, to which the largest cog-wheels are attached, is in the form of a double donkeycrank, its crooks Z being in opposite directions and right and left of the center of the shaft. To this shaft E are fastened at the donkeycrooks the legs R by rtheir upper ends, and by their lower ends to the treadle ratchet-levers S, which act directly on the drum or spool X through the ratchetgrooves U. The center Vratchet-groove V is acted on by the stop ratch W. Power applied to the machine at the cranks on one or both of the shafts will by its action, exerted through the other cog-wheels, shafts, and levers, have the effect to revolve the great spool or drum X, which is the principal object and office of the machine. The small spools Y on the shalt- E are for the purpose of attaching cords or ropes, to be used in hoisting appropriate weights into the rigging of the ship by the assistance ofthe ordinary pulley-block.

What I claim as my invention, and desire to secure by Letters Patent, is-

The shafts O D E, cog-wheels F G H, levers K, and spools Y, in their specified combination, on the bench B, constructed and arranged substantially as specified.

MARCUS BOGKMAN.

Witnesses J ULrUs E. EnrcKsoN, ARTHUR DE WTTZLEBER. 

